Bhagavad Gita, Chapter 13, Verse 26

Others again not knowing thus, worship as they have heard from others. Even these go beyond death, regarding what they have heard as the Supreme Refuge.

Even someone with no formal training at all is described here as having a real, workable way in.

Simply hearing from others and beginning to worship is named as enough to start crossing the same real distance. Real access isn't limited to those who already know the deeper paths.